[apple/xnu.git] / bsd / netinet / if_tun.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
 * Nottingham University 1987.
 *
 * This source may be freely distributed, however I would be interested
 * in any changes that are made.
 *
 * This driver takes packets off the IP i/f and hands them up to a
 * user process to have it's wicked way with. This driver has it's
 * roots in a similar driver written by Phil Cockcroft (formerly) at
 * UCL. This driver is based much more on read/write/select mode of
 * operation though.
 *
 */

#ifndef _NET_IF_TUN_H_
#define _NET_IF_TUN_H_
#include <sys/appleapiopts.h>

#ifdef KERNEL_PRIVATE
struct tun_softc {
	u_short	tun_flags;		/* misc flags */
#define	TUN_OPEN	0x0001
#define	TUN_INITED	0x0002
#define	TUN_RCOLL	0x0004
#define	TUN_IASET	0x0008
#define	TUN_DSTADDR	0x0010
#define	TUN_RWAIT	0x0040
#define	TUN_ASYNC	0x0080
#define	TUN_NBIO	0x0100

#define	TUN_READY	(TUN_OPEN | TUN_INITED | TUN_IASET)

	struct	ifnet tun_if;		/* the interface */
	int	tun_pgrp;		/* the process group - if any */
	struct	selinfo	tun_rsel;	/* read select */
	struct	selinfo	tun_wsel;	/* write select (not used) */
#if NBPFILTER > 0
	caddr_t		tun_bpf;
#endif
};

#endif KERNEL_PRIVATE

/* ioctl's for get/set debug */
#define	TUNSDEBUG	_IOW('t', 90, int)
#define	TUNGDEBUG	_IOR('t', 89, int)

/* Maximum packet size */
#define	TUNMTU		1500

#endif /* !_NET_IF_TUN_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
ff6e181a A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
1c79356b	12	*
ff6e181a A	13	* The Original Code and all software distributed under the License are
ff6e181a A	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
ff6e181a A	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
1c79356b A	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23	/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
	24	/*
	25	* Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
	26	* Nottingham University 1987.
	27	*
	28	* This source may be freely distributed, however I would be interested
	29	* in any changes that are made.
	30	*
	31	* This driver takes packets off the IP i/f and hands them up to a
	32	* user process to have it's wicked way with. This driver has it's
	33	* roots in a similar driver written by Phil Cockcroft (formerly) at
	34	* UCL. This driver is based much more on read/write/select mode of
	35	* operation though.
	36	*
	37	*/
	38
	39	#ifndef _NET_IF_TUN_H_
	40	#define _NET_IF_TUN_H_
9bccf70c	41	#include <sys/appleapiopts.h>
1c79356b	42
91447636	43	#ifdef KERNEL_PRIVATE
1c79356b A	44	struct tun_softc {
	45	u_short tun_flags; /* misc flags */
	46	#define TUN_OPEN 0x0001
	47	#define TUN_INITED 0x0002
	48	#define TUN_RCOLL 0x0004
	49	#define TUN_IASET 0x0008
	50	#define TUN_DSTADDR 0x0010
	51	#define TUN_RWAIT 0x0040
	52	#define TUN_ASYNC 0x0080
	53	#define TUN_NBIO 0x0100
	54
	55	#define TUN_READY (TUN_OPEN \| TUN_INITED \| TUN_IASET)
	56
	57	struct ifnet tun_if; /* the interface */
	58	int tun_pgrp; /* the process group - if any */
	59	struct selinfo tun_rsel; /* read select */
	60	struct selinfo tun_wsel; /* write select (not used) */
	61	#if NBPFILTER > 0
	62	caddr_t tun_bpf;
	63	#endif
	64	};
	65
91447636	66	#endif KERNEL_PRIVATE
1c79356b A	67
	68	/* ioctl's for get/set debug */
	69	#define TUNSDEBUG _IOW('t', 90, int)
	70	#define TUNGDEBUG _IOR('t', 89, int)
	71
91447636 A	72	/* Maximum packet size */
	73	#define TUNMTU 1500
	74
1c79356b	75	#endif /* !_NET_IF_TUN_H_ */